How to use Malwarebytes Anti-Malware to scan and remove malware from your computerBy Lawrence Abrams on February 16, 2010 @ 04:54 PM | Read 725,337 times.
Table of Contents
As you may have noticed, MalwareBytes or MBAM, is used in a lot of our removal
guides. We do this for no reason other than the fact that the program simply
works well and that we can count on it to remove what it says it can. It is
updated constantly throughout the day and has excellent protection on all the
new malware that comes out. With that said, we feel that MalwareBytes is an
important tool to have as part of your computer's security arsenal. One of the
program's nicest features is that it is free and easy to use. For those, who
may want more advanced features you can purchase
the commercial full version to get real-time protection that will protect
you from being infected in the first place. The guide below will walk you through
installing, configuring, and scanning your computer with Malwarebytes Anti-Malware.
Hopefully your computer should now be clean of any infections that may have been present. If your current anti-virus solution let this infection through, you may want to consider purchasing the PRO version of Malwarebytes Anti-Malware to protect against these types of threats in the future.
Below are some common errors you may run into when attempting to use Malwarebytes' Anti-Malware.
Malwarebytes' setup program closes when you attempt to install it.
If you attempt to install Malwarebytes' and the setup program automatically closes then there is a good chance that you have an infection that is trying to stop the program from installing. To get around this, try renaming mbam-setup.exe to other names like:
After each rename, try and run the program again. If that does not work, then
you may to download and run Rkill to terminate the malware
processes that are stopping you.
Malwarebytes' wont start
If you attempt to run Malwarebytes' and it does not start then there is a good chance that you have an infection that is trying to stop the program from running. To get around this, try renaming C:\program files\Malwarebytes Anti-Malware\mbam.exe to other names like:
After each rename, try and run mbam.exe again. If that does not work, then you may to download and run Rkill to terminate the malware processes that are stopping you.
If you receive an Error 732 when trying to update MBAM it could be because you do not currently have an Internet connection or a malware has changed your connection settings so that you are using a proxy server. To make sure your connection has not been set to use a proxy server, please do the following steps:
Now try and update MBAM again.
Malware may sometimes block Malwarebytes from updating its definitions in order to protect itself. If you are having issues updating and have already tried disabling any proxy servers, you can instead update the definitions manually. To do this simply copy the following files onto a USB key from a working computer that has MBAM installed and transfer them to the infected one.
Once the above files are copied onto a USB key, please copy them to the same folders on the infected computer.
If you do not have another computer available, then you can download a self-installing rules file from the following URL. Please note that this method will install definitions that are older than the latest ones:
If you receive an Error 2 when installing MBAM then a core executable was deleted by a malware running on your computer. To fix this we will first need to download a randomized version of mbam.exe and save it to the C:\program files\Malwarebytes' Anti-Malware\ folder. We can then run that random named executable to start Malwarebytes' and scan your computer. To do this follow these steps:
Now that MBAM is running, please update the program and scan your computer like normal.
If all of these steps do not work, then you can download, or copy from a clean computer, the Rkill program and run it on the infected computer. Rkill will then try and terminate the infections that may be stopping you from installing MalwareBytes'. You can download Rkill and renamed versions from the following download link:
When downloading Rkill, I suggest you download and try the iExplore.exe version first. Once Rkill runs, it will create a log of what applications were terminated. You can then attempt to start the installation of MalwareBytes or start the program again.
For more detailed troubleshooting information, please see this topic at the Malwarebytes' site.
Guide Updates History 02/16/10 - Tutorial created. 07/17/13 - Updated images to newest version. 07/22/14 - Updated for version 2.0 07/29/14 - Updated manual def update instructions.
This is a self-help guide. Use at your own risk.
BleepingComputer.com can not be held responsible for problems that may occur by using this information. If you would like help with any of these fixes, you can ask for malware removal assistance in our Virus, Trojan, Spyware, and Malware Removal Logs forum.
If you have any questions about this self-help guide then please post those questions in our Am I infected? What do I do? and someone will help you.
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